Rendering Engine GitHub Repositories (2026) · Open Source Tools

Native Swift 6 + Metal map rendering engine for SwiftUI. Globe and flat vector-tile maps with labels, SwiftUI markers and avatars, on iOS and macOS.

📄 Convert HTML/CSS to PDF or images instantly

A tutorial on infinite canvas

Fast and lightweight HTML/CSS rendering engine

A renderer agnostic two-dimensional drawing api for the web

A production-ready C++ vector graphics engine supporting SVG and Lottie formats, featuring advanced rendering backends such as WebGPU for high-performance graphics.

Cross-platform game engine with Vulkan backend

Zodiac Engine (ZEngine) — open-source 3D rendering engine in C++20 with Vulkan

A JavaScript rendering engine inspired by Flutter. Build any visualization — charts, diagrams, editors — with composable widgets and Canvas/SVG.

Modern, flexible computer graphics and rendering engine, written in C++23 with support for Vulkan 🌋 and DirectX 12 ❎.

A friendly and extendable shader art engine.

User interface engine driven by a declarative language + Rust